* Added vm_debug_copy_page_memory() which copies memory from a potentially not

mapped page.
* debug_{mem,strl}cpy():
  - Added "team" parameter for specifying the address space the address are
    to be interpreted in.
  - When the standard memcpy() (with fault handler) fails, fall back to
    vm_debug_copy_page_memory().
* Added debug_is_debugged_team(): Predicate returning true, if the supplied
  team_id refers to the same team debug_get_debugged_thread() belongs to.
* Added DebuggedThreadSetter class for scope-based debug_set_debugged_thread().
  Made use of it in several debugger functions.
* print_demangled_call() (x86): Fixed unsafe memory access.

Allows KDL stack traces to work correctly again, even if the page daemon has
already unmapped the concerned pages.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36230 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/vm/vm.h

@@ -140,6 +140,9 @@ status_t vm_memcpy_to_physical(addr_t to, const void* from, size_t length,
 			bool user);
 void vm_memcpy_physical_page(addr_t to, addr_t from);
 
+status_t vm_debug_copy_page_memory(team_id teamID, void* unsafeMemory,
+			void* buffer, size_t size, bool copyToUnsafe);
+
 // user syscalls
 area_id _user_create_area(const char *name, void **address, uint32 addressSpec,
 			size_t size, uint32 lock, uint32 protection);